^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Frontend driver for the GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Thanks to GENPIX for the sample code used to implement this module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * This module is based off the vp7045 and vp702x modules
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "gp8psk-fe.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <media/dvb_frontend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static int debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) module_param(debug, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define dprintk(fmt, arg...) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) if (debug) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) printk(KERN_DEBUG pr_fmt("%s: " fmt), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) __func__, ##arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct gp8psk_fe_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct dvb_frontend fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) void *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) const struct gp8psk_fe_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) bool is_rev1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u8 lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u16 snr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) unsigned long next_status_check;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) unsigned long status_check_interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static int gp8psk_tuned_to_DCII(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) u8 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) st->ops->in(st->priv, GET_8PSK_CONFIG, 0, 0, &status, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return status & bmDCtuned;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static int gp8psk_set_tuner_mode(struct dvb_frontend *fe, int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return st->ops->out(st->priv, SET_8PSK_CONFIG, mode, 0, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int gp8psk_fe_update_status(struct gp8psk_fe_state *st)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) u8 buf[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (time_after(jiffies,st->next_status_check)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) st->ops->in(st->priv, GET_SIGNAL_LOCK, 0, 0, &st->lock, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) st->ops->in(st->priv, GET_SIGNAL_STRENGTH, 0, 0, buf, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) st->snr = (buf[1]) << 8 | buf[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int gp8psk_fe_read_status(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) enum fe_status *status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) gp8psk_fe_update_status(st);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (st->lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) *status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_SIGNAL | FE_HAS_CARRIER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) *status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) if (*status & FE_HAS_LOCK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) st->status_check_interval = 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) st->status_check_interval = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /* not supported by this Frontend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static int gp8psk_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) (void) fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) *ber = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* not supported by this Frontend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static int gp8psk_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) (void) fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) *unc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static int gp8psk_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) gp8psk_fe_update_status(st);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) /* snr is reported in dBu*256 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) *snr = st->snr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static int gp8psk_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) gp8psk_fe_update_status(st);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /* snr is reported in dBu*256 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) /* snr / 38.4 ~= 100% strength */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /* snr * 17 returns 100% strength as 65535 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (st->snr > 0xf00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) *strength = 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) *strength = (st->snr << 4) + st->snr; /* snr*17 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int gp8psk_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) tune->min_delay_ms = 800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static int gp8psk_fe_set_frontend(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct dtv_frontend_properties *c = &fe->dtv_property_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) u8 cmd[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) u32 freq = c->frequency * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) dprintk("%s()\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) cmd[4] = freq & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) cmd[5] = (freq >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) cmd[6] = (freq >> 16) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) cmd[7] = (freq >> 24) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /* backwards compatibility: DVB-S + 8-PSK were used for Turbo-FEC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) if (c->delivery_system == SYS_DVBS && c->modulation == PSK_8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) c->delivery_system = SYS_TURBO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) switch (c->delivery_system) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) case SYS_DVBS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (c->modulation != QPSK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) dprintk("%s: unsupported modulation selected (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) __func__, c->modulation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) c->fec_inner = FEC_AUTO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) case SYS_DVBS2: /* kept for backwards compatibility */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) dprintk("%s: DVB-S2 delivery system selected\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) case SYS_TURBO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) dprintk("%s: Turbo-FEC delivery system selected\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) dprintk("%s: unsupported delivery system selected (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) __func__, c->delivery_system);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) cmd[0] = c->symbol_rate & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) cmd[1] = (c->symbol_rate >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) cmd[2] = (c->symbol_rate >> 16) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) cmd[3] = (c->symbol_rate >> 24) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) switch (c->modulation) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) case QPSK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) if (st->is_rev1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (gp8psk_tuned_to_DCII(fe))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) st->ops->reload(st->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) switch (c->fec_inner) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) case FEC_1_2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) cmd[9] = 0; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) case FEC_2_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) cmd[9] = 1; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) case FEC_3_4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) cmd[9] = 2; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) case FEC_5_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) cmd[9] = 3; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) case FEC_7_8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) cmd[9] = 4; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) case FEC_AUTO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) cmd[9] = 5; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) cmd[9] = 5; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (c->delivery_system == SYS_TURBO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) cmd[8] = ADV_MOD_TURBO_QPSK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) cmd[8] = ADV_MOD_DVB_QPSK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) case PSK_8: /* PSK_8 is for compatibility with DN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) cmd[8] = ADV_MOD_TURBO_8PSK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) switch (c->fec_inner) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) case FEC_2_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) cmd[9] = 0; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) case FEC_3_4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) cmd[9] = 1; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) case FEC_3_5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) cmd[9] = 2; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) case FEC_5_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) cmd[9] = 3; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) case FEC_8_9:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) cmd[9] = 4; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) cmd[9] = 0; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) case QAM_16: /* QAM_16 is for compatibility with DN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) cmd[8] = ADV_MOD_TURBO_16QAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) cmd[9] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) default: /* Unknown modulation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) dprintk("%s: unsupported modulation selected (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) __func__, c->modulation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (st->is_rev1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) gp8psk_set_tuner_mode(fe, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) st->ops->out(st->priv, TUNE_8PSK, 0, 0, cmd, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) st->lock = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) st->next_status_check = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) st->status_check_interval = 200;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static int gp8psk_fe_send_diseqc_msg (struct dvb_frontend* fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct dvb_diseqc_master_cmd *m)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) dprintk("%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (st->ops->out(st->priv, SEND_DISEQC_COMMAND, m->msg[0], 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) m->msg, m->msg_len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static int gp8psk_fe_send_diseqc_burst(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) enum fe_sec_mini_cmd burst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) u8 cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) dprintk("%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) /* These commands are certainly wrong */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) cmd = (burst == SEC_MINI_A) ? 0x00 : 0x01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) if (st->ops->out(st->priv, SEND_DISEQC_COMMAND, cmd, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) &cmd, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) static int gp8psk_fe_set_tone(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) enum fe_sec_tone_mode tone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (st->ops->out(st->priv, SET_22KHZ_TONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) (tone == SEC_TONE_ON), 0, NULL, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static int gp8psk_fe_set_voltage(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) enum fe_sec_voltage voltage)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) if (st->ops->out(st->priv, SET_LNB_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) voltage == SEC_VOLTAGE_18, 0, NULL, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) static int gp8psk_fe_enable_high_lnb_voltage(struct dvb_frontend* fe, long onoff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) return st->ops->out(st->priv, USE_EXTRA_VOLT, onoff, 0, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) static int gp8psk_fe_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long sw_cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) u8 cmd = sw_cmd & 0x7f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (st->ops->out(st->priv, SET_DN_SWITCH, cmd, 0, NULL, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (st->ops->out(st->priv, SET_LNB_VOLTAGE, !!(sw_cmd & 0x80),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 0, NULL, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) static void gp8psk_fe_release(struct dvb_frontend* fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct gp8psk_fe_state *st = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) kfree(st);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) static const struct dvb_frontend_ops gp8psk_fe_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) struct dvb_frontend *gp8psk_fe_attach(const struct gp8psk_fe_ops *ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) void *priv, bool is_rev1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct gp8psk_fe_state *st;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) if (!ops || !ops->in || !ops->out || !ops->reload) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) pr_err("Error! gp8psk-fe ops not defined.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) st = kzalloc(sizeof(struct gp8psk_fe_state), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (!st)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) memcpy(&st->fe.ops, &gp8psk_fe_ops, sizeof(struct dvb_frontend_ops));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) st->fe.demodulator_priv = st;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) st->ops = ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) st->priv = priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) st->is_rev1 = is_rev1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) pr_info("Frontend %sattached\n", is_rev1 ? "revision 1 " : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) return &st->fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) EXPORT_SYMBOL_GPL(gp8psk_fe_attach);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) static const struct dvb_frontend_ops gp8psk_fe_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) .delsys = { SYS_DVBS },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) .info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) .name = "Genpix DVB-S",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) .frequency_min_hz = 800 * MHz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) .frequency_max_hz = 2250 * MHz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) .frequency_stepsize_hz = 100 * kHz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) .symbol_rate_min = 1000000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) .symbol_rate_max = 45000000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) .symbol_rate_tolerance = 500, /* ppm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) .caps = FE_CAN_INVERSION_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * FE_CAN_QAM_16 is for compatibility
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * (Myth incorrectly detects Turbo-QPSK as plain QAM-16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_TURBO_FEC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) .release = gp8psk_fe_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) .init = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) .sleep = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) .set_frontend = gp8psk_fe_set_frontend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) .get_tune_settings = gp8psk_fe_get_tune_settings,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) .read_status = gp8psk_fe_read_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) .read_ber = gp8psk_fe_read_ber,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) .read_signal_strength = gp8psk_fe_read_signal_strength,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) .read_snr = gp8psk_fe_read_snr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) .read_ucblocks = gp8psk_fe_read_unc_blocks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .diseqc_send_master_cmd = gp8psk_fe_send_diseqc_msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) .diseqc_send_burst = gp8psk_fe_send_diseqc_burst,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) .set_tone = gp8psk_fe_set_tone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) .set_voltage = gp8psk_fe_set_voltage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) .dishnetwork_send_legacy_command = gp8psk_fe_send_legacy_dish_cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) .enable_high_lnb_voltage = gp8psk_fe_enable_high_lnb_voltage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) MODULE_DESCRIPTION("Frontend Driver for Genpix DVB-S");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) MODULE_VERSION("1.1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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